Phane btjlot



. P. Z. s. BU-LOTQ Stud and Button.

No. 225,337. Patented Mar. 59,1880

w-c'waeazses "PETERS, FHOTWUTHOGRAPNER, WASHINGTON. D C.

. shank detached.

PIERRE Z. S. BULOT,

PATENT OFFICE.-

OF PARIS, FRANCE.

STUD AND BUTTON.-

SPECIFICATION forming part of Letters Patent No. 225,337, dated March 9, 1880.

Application filed October 18, 1879. Patented in France, September 6, 1876. I

To all whom it may concern:

Be it known that I, PIERRE ZEPHIR STE- PHANE BULOT, of the city of Paris, in the Republic of France, have invented certain Improvements in Studs and Buttons for Shirts, Cuffs, &c., of which the following is a specification.

This invention relates to an improvement in lock studs or buttons, its object being to provide a stud or button of this class which is easily applied and is not liable to become unlocked and detached from the garment or article upon which it is used.

The invention consists in a button-head having a notched stationary plate, in combination with a movable or swinging plate having a flat spring provided with a shaft which is adapted to engage the notch in the stationary plate of the button-heathas will be more fully hereinafter described in detail.

In the accompanying drawings, Figure 1 is an edge view of a button-head having the stationary shank projecting centrally therefrom, as before being bent to its ultimate form. Fig. 2 shows a plan and an edge viewot' the Fig. 3 gives two edge views of a button-head having the shank bent to its final form. Fig. 4 is a plan view of the movable lockingplate detached. Fig. 5 shows bottom and edge views of a button having its locking-plate in position for insertion into a button-hole, and Fig. 6 shows similar views of a button with its locking-plate in looking po-- sition.

The letter A designates. the button-head,

which may be made of bone, metal, or other suitable material, and B is a stationary metal shank projecting centrally therefrom. This shank is provided with an end projection, G, which may be bent and soldered to the head when the latter is metal; or said projection may be formed as a screw or rivet for attachment to non-metallic heads.

In the end of the shank next the projection G is formed an opening having a notch, E, in its inner wall, and in the opposite end of the shank is a similar notch, E. Between these two notches a circular hole, 0, is formed in the shank, and is surrounded by a rim or flange, D, which serves as a pivot and eyelet, as will presently appear. This shank I usually stamp complete from sheet metal and bend it at a right angle on the dotted line, Fig. 2, so that a portion of the notch E will be in each arm.

The letter F indicates the swinging locking-plate. (Shown in plan view, Fig. 4.) Itis stamped from sheet metal, and is an oblong plate of equal width with the shank B. It has in one end a hole, H, which tits around the rim D, which, when the plate is placed upon the shank, is turned down, after the manner of an eyelet, to hold the two parts together, and serves as a pivot upon which the plate turns.

The main portion -of the plate F is cut through to form a spring-tongue, I, which projects from a point near the end of the plate opposite the hole H nearly to said hole, and its free end is indented to form a projection, J, which is rounded or beveled on its sides.

When the shank and the plate F are secured together, as before explained, and the latter is swung outward, as in Fig. 5, in line with the former, the projection J engages with the notch E in the end of the shank, the tongue I yielding when the rounded or beveled side of the projection J strikes the edge of the shank, to permit the said projection to ride over the end of the shank and enter the notch. The plate and shank are then in proper relation to each other to be inserted in a button-hole, after which the plate is to be swunginward to the position shown in Fig. 6, for locking the shank in said button-hole, the projection J engaging with the notch E in the same manner as with the notch E. The locking-plate in this position forms a cross-head in connection with the outwardly-bent portion of the shank, and eflectually prevents the removal of the button or stud.

I do not, of course, limit myself to the precise form of the parts as shown, as the essential features of the invention may be embodied and combined in various forms.

What I claim is- 1. The button-head having the stationary plate B, provided with notch .E, in combination with the movable or swinging plate P, having the spring 1, provided with a shaft for engaging in said notch, substantially as described.

2. The button-head having the stationary plate B, provided with notches E and E, and the pivoted plate P, provided with spring I, having a stop orprojection to engage in said notches, substantially as described.

Witnesses: P. Z. S. BULOT.

R0131. M. HOOPER, S. Hanan. 

